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Potassium Phosphate, Tribasic → 3-Fluoro-2-(2-methylprop-1-enyl)-6-nitrobenzonitrile

HRID 471603
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HRID 471603 반응식
Br[C:2]1[C:9]([F:10])=[CH:8][CH:7]=[C:6]([N+:11]([O-:13])=[O:12])[C:3]=1[C:4]#[N:5].[CH3:14][C:15]([CH3:20])=[CH:16]B(O)O.[O-]P([O-])([O-])=O.[K+].[K+].[K+].C1(P(C2CCCCC2)C2C=CC=CC=2C2C(OC)=CC=CC=2OC)CCCCC1>C1COCC1.C([O-])(=O)C.[Pd+2].C([O-])(=O)C>[F:10][C:9]1[C:2]([CH:14]=[C:15]([CH3:20])[CH3:16])=[C:3]([C:6]([N+:11]([O-:13])=[O:12])=[CH:7][CH:8]=1)[C:4]#[N:5]
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7

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HCID 62657Potassium Phosphate, TribasicHCID 27632992,2-Dimethylethenylboronic acidHCID 112698722-Dicyclohexylphosphino-2',6'-dimethoxybiphenylHCID 673997772-Bromo-3-fluoro-6-nitrobenzonitrile

생성물 1

HCID 673981973-Fluoro-2-(2-methylprop-1-enyl)-6-nitrobenzonitrile수율 79%

시약·촉매·용매 2

HCID 167845
palladium(II) acetate
촉매
HCID 8028Tetrahydrofuran용매

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온도
70 °C

실험 절차

2-Bromo-3-fluoro-6-nitrobenzonitrile (Example 134d) (0.62 g, 2.53 mmol), 2-methylprop-1-enylboronic acid (0.50 g, 5.05 mmol), palladium(II) acetate (0.023 g, 0.102 mmol), K3PO4 (1.61 g, 7.58 mmol), and dicyclohexyl(2′,6′-dimethoxybiphenyl-2-yl)phosphine (0.083 g, 0.202 mmol) were suspended in anhydrous THF (16 mL) under nitrogen and heated at 70° C. for 4.5 h. Solvent was removed under vacuum, and the product was purified by chromatography on silica gel eluting with gradient 0% to 100% ethyl acetate in hexanes, to give 3-fluoro-2-(2-methylprop-1-enyl)-6-nitrobenzonitrile 0.44 g (78%) as a yellow solid. MS 221 (MH+).

후처리

  1. customSolvent was removed under vacuum
  2. customthe product was purified by chromatography on silica gel eluting with gradient 0% to 100% ethyl acetate in hexanes

출처 및 근거

ORD 기록
ord-e830988cda5847019f793d99532cf1d8
출처 데이터셋
uspto-grants-2014_01
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08633186B2

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